764123741413481 has 2 divisors, whose sum is σ = 764123741413482. Its totient is φ = 764123741413480.

The previous prime is 764123741413433. The next prime is 764123741413519. The reversal of 764123741413481 is 184314147321467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 580496308567081 + 183627432846400 = 24093491^2 + 13550920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-764123741413481 is a prime.

It is a super-2 number, since 2×764123741413481² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (764123741413411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382061870706740 + 382061870706741.

It is an arithmetic number, because the mean of its divisors is an integer number (382061870706741).

Almost surely, 2^{764123741413481} is an apocalyptic number.

It is an amenable number.

764123741413481 is a deficient number, since it is larger than the sum of its proper divisors (1).

764123741413481 is an equidigital number, since it uses as much as digits as its factorization.

764123741413481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10838016, while the sum is 56.

The spelling of 764123741413481 in words is "seven hundred sixty-four trillion, one hundred twenty-three billion, seven hundred forty-one million, four hundred thirteen thousand, four hundred eighty-one".